So I have a side computer that had a brand new Asus Strix RX 570 OC in it, I just a couple days ago took an old Radeon HD 6970 out of another pc and I thought well why don't I just shove it in this pc for extra hashing small as it may be (electric is no issue). But I have not been able to get them both to work at the same time it's as if only 1 can have drivers active at any time. I originally ran video driver cleaning software put in RX 570 and then installed AMD's blockchain driver, then put in HD 6970 computer detected it an auto installed some drivers it showed up in device manager fine but when you click the drivers tab it would always say no drivers installed for this and if you plugged the monitor in to it you would never get resolution about 1280x1024 cuz there is no proper drivers, but whenever I would try to update it's drivers from the device manager it would always say the latest drivers are installed when clearly they are not. And then when I would try installing drivers through a disc which is the only way to force it to take some kind of drivers, which would then make the RX 570 show an error in device manager saying it doesnt have drivers and the same thing would then happen with the Rx 570.

The only thing I can think of is that the cards are just to far apart in age ? I really have no idea about this cuz I have never actually put 2 different (model) cards into a pc at once especially considering the age difference between the two is it just not possible ? Or is there some of setting or something I'm not considering when it comes to putting 2 different generation cards into a pc to mine with ? Any help on this guys ?

My MOBO for this pc is a Asus Sabertooth 990fx r2.0 btw

Thus far I have been mining pretty big well known alt coins like Zcash,Monero, ect. But now I want to start mining some Alt coins that are less known and have much less mining difficulty. Yes I'm well aware that this means the alt coins in questions will be not nearly as valuable at the moment, but that's the gamble i'm trying to take, to mine maybe a few coins that are in the infancy or just maybe haven't caught on yet and have the chance to grow exponentially rather than just a decent amount. So any thoughts guys ? I have been taking notes on some I found through Googling, but I figured I should ask my peeps on Bitcointalk being this seems to be by far the best crypto forum.

Btw first post hi all !